# RESIDIUM vs BioSign HRV

The clearest difference is update cadence: BioSign HRV at fortnightly against RESIDIUM's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

RESIDIUM ships an update every 3 months, BioSign HRV fortnightly. The most recent releases landed on October 2, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | RESIDIUM | BioSign HRV |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/biosign-hrv/id1609779336/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 89 MB | 187 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Callom GmbH](https://appshunter.io/developer/1024907442) | [BioSign GmbH](https://appshunter.io/developer/1519501157) |

## What reviewers say

### RESIDIUM

[App page](https://appshunter.io/ios/app/residium/id1024907443)

**Features:** macOS Compatibility

**In-app purchases:** none


### BioSign HRV

[App page](https://appshunter.io/ios/app/biosign-hrv/id1609779336)

Monitor heart rate variability (HRV) and engage in biofeedback exercises. Analyze recovery, stress, and daily condition with data insights. Securely store and share your health metrics.

**Highlights:** HRV measurement and biofeedback exercises, Qiu+ device configuration and data reading, Secure cloud data upload to myQiu, Integration into BioSign HRV concept, Data privacy and consent-based sharing

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is RESIDIUM free?

RESIDIUM is free to download, with no in-app purchases.

### Is BioSign HRV free?

BioSign HRV is free to download, with no in-app purchases.

### Do RESIDIUM or BioSign HRV have ads?

Neither RESIDIUM nor BioSign HRV shows ads.

### Which is updated more often, RESIDIUM or BioSign HRV?

RESIDIUM ships an update every 3 months, and BioSign HRV fortnightly. Most recently, RESIDIUM was updated on October 2, 2026 and BioSign HRV on September 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*